1 /*
2 * Kernel initialization code
3 *
4 * Copyright 2000 Alexandre Julliard
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19 */
20
21 #include "config.h"
22 #include "wine/port.h"
23
24 #include <assert.h>
25 #include <ctype.h>
26 #include <stdarg.h>
27 #include <string.h>
28 #include <signal.h>
29
30 #include "windef.h"
31 #include "winbase.h"
32 #include "wincon.h"
33 #include "winternl.h"
34 #include "wownt32.h"
35
36 #include "wine/winbase16.h"
37 #include "wine/library.h"
38 #include "toolhelp.h"
39 #include "kernel_private.h"
40 #include "kernel16_private.h"
41 #include "console_private.h"
42 #include "wine/debug.h"
43
44 WINE_DEFAULT_DEBUG_CHANNEL(process);
45
46 extern int __wine_set_signal_handler(unsigned, int (*)(unsigned));
47
48 static ULONGLONG server_start_time;
49
50 /***********************************************************************
51 * KERNEL thread initialisation routine
52 */
53 static void thread_attach(void)
54 {
55 /* allocate the 16-bit stack (FIXME: should be done lazily) */
56 HGLOBAL16 hstack = WOWGlobalAlloc16( GMEM_FIXED, 0x10000 );
57 kernel_get_thread_data()->stack_sel = GlobalHandleToSel16( hstack );
58 NtCurrentTeb()->WOW32Reserved = (void *)MAKESEGPTR( kernel_get_thread_data()->stack_sel,
59 0x10000 - sizeof(STACK16FRAME) );
60 memset( (char *)GlobalLock16(hstack) + 0x10000 - sizeof(STACK16FRAME), 0, sizeof(STACK16FRAME) );
61 }
62
63
64 /***********************************************************************
65 * KERNEL thread finalisation routine
66 */
67 static void thread_detach(void)
68 {
69 /* free the 16-bit stack */
70 WOWGlobalFree16( kernel_get_thread_data()->stack_sel );
71 NtCurrentTeb()->WOW32Reserved = 0;
72 if (NtCurrentTeb()->Tib.SubSystemTib) TASK_ExitTask();
73 }
74
75
76 /***********************************************************************
77 * set_entry_point
78 */
79 static void set_entry_point( HMODULE module, const char *name, DWORD rva )
80 {
81 IMAGE_EXPORT_DIRECTORY *exports;
82 DWORD exp_size;
83
84 if ((exports = RtlImageDirectoryEntryToData( module, TRUE,
85 IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size )))
86 {
87 DWORD *functions = (DWORD *)((char *)module + exports->AddressOfFunctions);
88 const WORD *ordinals = (const WORD *)((const char *)module + exports->AddressOfNameOrdinals);
89 const DWORD *names = (const DWORD *)((const char *)module + exports->AddressOfNames);
90 int min = 0, max = exports->NumberOfNames - 1;
91
92 while (min <= max)
93 {
94 int res, pos = (min + max) / 2;
95 const char *ename = (const char *)module + names[pos];
96 if (!(res = strcmp( ename, name )))
97 {
98 WORD ordinal = ordinals[pos];
99 assert( ordinal < exports->NumberOfFunctions );
100 TRACE( "setting %s at %p to %08x\n", name, &functions[ordinal], rva );
101 functions[ordinal] = rva;
102 return;
103 }
104 if (res > 0) max = pos - 1;
105 else min = pos + 1;
106 }
107 }
108 }
109
110
111 /***********************************************************************
112 * KERNEL process initialisation routine
113 */
114 static BOOL process_attach( HMODULE module )
115 {
116 SYSTEM_INFO si;
117 SYSTEM_TIMEOFDAY_INFORMATION ti;
118 RTL_USER_PROCESS_PARAMETERS *params = NtCurrentTeb()->Peb->ProcessParameters;
119
120 /* FIXME: should probably be done in ntdll */
121 GetSystemInfo( &si );
122 NtCurrentTeb()->Peb->NumberOfProcessors = si.dwNumberOfProcessors;
123
124 NtQuerySystemInformation( SystemTimeOfDayInformation, &ti, sizeof(ti), NULL );
125 server_start_time = ti.liKeBootTime.QuadPart;
126
127 /* Setup registry locale information */
128 LOCALE_InitRegistry();
129
130 /* Setup computer name */
131 COMPUTERNAME_Init();
132
133 /* convert value from server:
134 * + 0 => INVALID_HANDLE_VALUE
135 * + console handle needs to be mapped
136 */
137 if (!params->hStdInput)
138 params->hStdInput = INVALID_HANDLE_VALUE;
139 else if (VerifyConsoleIoHandle(console_handle_map(params->hStdInput)))
140 params->hStdInput = console_handle_map(params->hStdInput);
141
142 if (!params->hStdOutput)
143 params->hStdOutput = INVALID_HANDLE_VALUE;
144 else if (VerifyConsoleIoHandle(console_handle_map(params->hStdOutput)))
145 params->hStdOutput = console_handle_map(params->hStdOutput);
146
147 if (!params->hStdError)
148 params->hStdError = INVALID_HANDLE_VALUE;
149 else if (VerifyConsoleIoHandle(console_handle_map(params->hStdError)))
150 params->hStdError = console_handle_map(params->hStdError);
151
152 /* copy process information from ntdll */
153 ENV_CopyStartupInformation();
154
155 if (!(GetVersion() & 0x80000000))
156 {
157 /* Securom checks for this one when version is NT */
158 set_entry_point( module, "FT_Thunk", 0 );
159 }
160 #ifdef __i386__
161 else
162 {
163 /* create the shared heap for broken win95 native dlls */
164 HeapCreate( HEAP_SHARED, 0, 0 );
165 /* setup emulation of protected instructions from 32-bit code */
166 RtlAddVectoredExceptionHandler( TRUE, INSTR_vectored_handler );
167 }
168 #endif
169
170 /* finish the process initialisation for console bits, if needed */
171 __wine_set_signal_handler(SIGINT, CONSOLE_HandleCtrlC);
172
173 if (params->ConsoleHandle == (HANDLE)1) /* FIXME */
174 {
175 HMODULE mod = GetModuleHandleA(0);
176 if (RtlImageNtHeader(mod)->OptionalHeader.Subsystem == IMAGE_SUBSYSTEM_WINDOWS_CUI)
177 AllocConsole();
178 }
179 /* else TODO for DETACHED_PROCESS:
180 * 1/ inherit console + handles
181 * 2/ create std handles, if handles are not inherited
182 * TBD when not using wineserver handles for console handles
183 */
184
185 /* Create 16-bit task */
186 LoadLibrary16( "krnl386.exe" );
187 thread_attach();
188 TASK_CreateMainTask();
189 return TRUE;
190 }
191
192 /***********************************************************************
193 * KERNEL initialisation routine
194 */
195 BOOL WINAPI DllMain( HINSTANCE hinst, DWORD reason, LPVOID reserved )
196 {
197 switch(reason)
198 {
199 case DLL_PROCESS_ATTACH:
200 return process_attach( hinst );
201 case DLL_THREAD_ATTACH:
202 thread_attach();
203 break;
204 case DLL_THREAD_DETACH:
205 thread_detach();
206 break;
207 case DLL_PROCESS_DETACH:
208 WriteOutProfiles16();
209 break;
210 }
211 return TRUE;
212 }
213
214 /***********************************************************************
215 * MulDiv (KERNEL32.@)
216 * RETURNS
217 * Result of multiplication and division
218 * -1: Overflow occurred or Divisor was 0
219 */
220 INT WINAPI MulDiv( INT nMultiplicand, INT nMultiplier, INT nDivisor)
221 {
222 LONGLONG ret;
223
224 if (!nDivisor) return -1;
225
226 /* We want to deal with a positive divisor to simplify the logic. */
227 if (nDivisor < 0)
228 {
229 nMultiplicand = - nMultiplicand;
230 nDivisor = -nDivisor;
231 }
232
233 /* If the result is positive, we "add" to round. else, we subtract to round. */
234 if ( ( (nMultiplicand < 0) && (nMultiplier < 0) ) ||
235 ( (nMultiplicand >= 0) && (nMultiplier >= 0) ) )
236 ret = (((LONGLONG)nMultiplicand * nMultiplier) + (nDivisor/2)) / nDivisor;
237 else
238 ret = (((LONGLONG)nMultiplicand * nMultiplier) - (nDivisor/2)) / nDivisor;
239
240 if ((ret > 2147483647) || (ret < -2147483647)) return -1;
241 return ret;
242 }
243
244
245 /******************************************************************************
246 * GetTickCount64 (KERNEL32.@)
247 */
248 ULONGLONG WINAPI GetTickCount64(void)
249 {
250 LARGE_INTEGER now;
251
252 NtQuerySystemTime( &now );
253 return (now.QuadPart - server_start_time) / 10000;
254 }
255
256
257 /***********************************************************************
258 * GetTickCount (KERNEL32.@)
259 *
260 * Get the number of milliseconds the system has been running.
261 *
262 * PARAMS
263 * None.
264 *
265 * RETURNS
266 * The current tick count.
267 *
268 * NOTES
269 * The value returned will wrap around every 2^32 milliseconds.
270 * Under Windows, tick 0 is the moment at which the system is rebooted.
271 * Under Wine, tick 0 begins at the moment the wineserver process is started.
272 */
273 DWORD WINAPI GetTickCount(void)
274 {
275 return GetTickCount64();
276 }
277
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